mirror of https://github.com/facebook/rocksdb.git
500 lines
17 KiB
C++
500 lines
17 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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// Introduction of SyncPoint effectively disabled building and running this test
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// in Release build.
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// which is a pity, it is a good test
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#include "db/db_test_util.h"
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#include "port/port.h"
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#include "port/stack_trace.h"
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#include "rocksdb/env.h"
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#include "util/random.h"
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namespace ROCKSDB_NAMESPACE {
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class DBTestDynamicLevel : public DBTestBase {
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public:
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DBTestDynamicLevel()
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: DBTestBase("db_dynamic_level_test", /*env_do_fsync=*/true) {}
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};
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TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase) {
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if (!Snappy_Supported() || !LZ4_Supported()) {
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return;
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}
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// Use InMemoryEnv, or it would be too slow.
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std::unique_ptr<Env> env(NewMemEnv(env_));
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const int kNKeys = 1000;
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int keys[kNKeys];
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auto verify_func = [&]() {
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for (int i = 0; i < kNKeys; i++) {
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ASSERT_NE("NOT_FOUND", Get(Key(i)));
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ASSERT_NE("NOT_FOUND", Get(Key(kNKeys * 2 + i)));
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if (i < kNKeys / 10) {
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ASSERT_EQ("NOT_FOUND", Get(Key(kNKeys + keys[i])));
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} else {
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ASSERT_NE("NOT_FOUND", Get(Key(kNKeys + keys[i])));
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}
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}
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};
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Random rnd(301);
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for (int ordered_insert = 0; ordered_insert <= 1; ordered_insert++) {
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for (int i = 0; i < kNKeys; i++) {
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keys[i] = i;
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}
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if (ordered_insert == 0) {
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RandomShuffle(std::begin(keys), std::end(keys), rnd.Next());
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}
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for (int max_background_compactions = 1; max_background_compactions < 4;
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max_background_compactions += 2) {
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Options options;
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options.env = env.get();
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options.create_if_missing = true;
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options.write_buffer_size = 2048;
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options.max_write_buffer_number = 2;
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options.level0_file_num_compaction_trigger = 2;
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options.level0_slowdown_writes_trigger = 2;
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options.level0_stop_writes_trigger = 2;
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options.target_file_size_base = 2048;
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options.level_compaction_dynamic_level_bytes = true;
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options.max_bytes_for_level_base = 10240;
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options.max_bytes_for_level_multiplier = 4;
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options.max_background_compactions = max_background_compactions;
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options.num_levels = 5;
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options.compression_per_level.resize(3);
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options.compression_per_level[0] = kNoCompression;
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options.compression_per_level[1] = kLZ4Compression;
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options.compression_per_level[2] = kSnappyCompression;
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options.env = env_;
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DestroyAndReopen(options);
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for (int i = 0; i < kNKeys; i++) {
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int key = keys[i];
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ASSERT_OK(Put(Key(kNKeys + key), rnd.RandomString(102)));
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ASSERT_OK(Put(Key(key), rnd.RandomString(102)));
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ASSERT_OK(Put(Key(kNKeys * 2 + key), rnd.RandomString(102)));
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ASSERT_OK(Delete(Key(kNKeys + keys[i / 10])));
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env_->SleepForMicroseconds(5000);
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}
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uint64_t int_prop;
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.background-errors", &int_prop));
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ASSERT_EQ(0U, int_prop);
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// Verify DB
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for (int j = 0; j < 2; j++) {
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verify_func();
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if (j == 0) {
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Reopen(options);
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}
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}
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// Test compact range works
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ASSERT_OK(
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dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
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// All data should be in the last level.
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ColumnFamilyMetaData cf_meta;
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db_->GetColumnFamilyMetaData(&cf_meta);
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ASSERT_EQ(5U, cf_meta.levels.size());
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for (int i = 0; i < 4; i++) {
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ASSERT_EQ(0U, cf_meta.levels[i].files.size());
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}
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ASSERT_GT(cf_meta.levels[4U].files.size(), 0U);
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verify_func();
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Close();
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}
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}
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env_->SetBackgroundThreads(1, Env::LOW);
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env_->SetBackgroundThreads(1, Env::HIGH);
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}
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// Test specific cases in dynamic max bytes
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TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase2) {
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Random rnd(301);
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int kMaxKey = 1000000;
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Options options = CurrentOptions();
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options.compression = kNoCompression;
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options.create_if_missing = true;
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options.write_buffer_size = 20480;
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options.max_write_buffer_number = 2;
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options.level0_file_num_compaction_trigger = 2;
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options.level0_slowdown_writes_trigger = 9999;
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options.level0_stop_writes_trigger = 9999;
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options.target_file_size_base = 9102;
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options.level_compaction_dynamic_level_bytes = true;
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options.max_bytes_for_level_base = 40960;
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options.max_bytes_for_level_multiplier = 4;
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options.max_background_compactions = 2;
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options.num_levels = 5;
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options.max_compaction_bytes = 0; // Force not expanding in compactions
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options.db_host_id = ""; // Setting this messes up the file size calculation
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BlockBasedTableOptions table_options;
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table_options.block_size = 1024;
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options.table_factory.reset(NewBlockBasedTableFactory(table_options));
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DestroyAndReopen(options);
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "true"},
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}));
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uint64_t int_prop;
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std::string str_prop;
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// Initial base level is the last level
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(4U, int_prop);
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// Put about 28K to L0
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for (int i = 0; i < 70; i++) {
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ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
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rnd.RandomString(380)));
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}
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "false"},
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}));
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(4U, int_prop);
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// Insert extra about 28K to L0. After they are compacted to L4, the base
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// level should be changed to L3.
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "true"},
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}));
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for (int i = 0; i < 70; i++) {
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ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
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rnd.RandomString(380)));
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}
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "false"},
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}));
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(3U, int_prop);
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ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level1", &str_prop));
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ASSERT_EQ("0", str_prop);
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ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level2", &str_prop));
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ASSERT_EQ("0", str_prop);
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// Write even more data while leaving the base level at L3.
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "true"},
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}));
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// Write about 40K more
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for (int i = 0; i < 100; i++) {
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ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
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rnd.RandomString(380)));
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}
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "false"},
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}));
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(3U, int_prop);
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// Fill up L0, and then run an (auto) L0->Lmax compaction to raise the base
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// level to 2.
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "true"},
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}));
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// Write about 650K more.
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// Each file is about 11KB, with 9KB of data.
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for (int i = 0; i < 1300; i++) {
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ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
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rnd.RandomString(380)));
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}
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// Make sure that the compaction starts before the last bit of data is
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// flushed, so that the base level isn't raised to L1.
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
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{"CompactionJob::Run():Start", "DynamicLevelMaxBytesBase2:0"},
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});
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(dbfull()->SetOptions({
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{"disable_auto_compactions", "false"},
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}));
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TEST_SYNC_POINT("DynamicLevelMaxBytesBase2:0");
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(2U, int_prop);
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
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// Write more data until the base level changes to L1. There will be
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// a manual compaction going on at the same time.
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
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{"CompactionJob::Run():Start", "DynamicLevelMaxBytesBase2:1"},
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{"DynamicLevelMaxBytesBase2:2", "CompactionJob::Run():End"},
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{"DynamicLevelMaxBytesBase2:compact_range_finish",
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"FlushJob::WriteLevel0Table"},
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});
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
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ROCKSDB_NAMESPACE::port::Thread thread([this] {
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TEST_SYNC_POINT("DynamicLevelMaxBytesBase2:compact_range_start");
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
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TEST_SYNC_POINT("DynamicLevelMaxBytesBase2:compact_range_finish");
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});
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TEST_SYNC_POINT("DynamicLevelMaxBytesBase2:1");
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for (int i = 0; i < 2; i++) {
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ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
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rnd.RandomString(380)));
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}
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TEST_SYNC_POINT("DynamicLevelMaxBytesBase2:2");
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ASSERT_OK(Flush());
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thread.join();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(1U, int_prop);
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}
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// Test specific cases in dynamic max bytes
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TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesCompactRange) {
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Random rnd(301);
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int kMaxKey = 1000000;
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Options options = CurrentOptions();
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options.create_if_missing = true;
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options.write_buffer_size = 2048;
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options.max_write_buffer_number = 2;
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options.level0_file_num_compaction_trigger = 2;
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options.level0_slowdown_writes_trigger = 9999;
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options.level0_stop_writes_trigger = 9999;
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options.target_file_size_base = 2;
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options.level_compaction_dynamic_level_bytes = true;
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options.max_bytes_for_level_base = 10240;
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options.max_bytes_for_level_multiplier = 4;
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options.max_background_compactions = 1;
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const int kNumLevels = 5;
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options.num_levels = kNumLevels;
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options.max_compaction_bytes = 1; // Force not expanding in compactions
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BlockBasedTableOptions table_options;
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table_options.block_size = 1024;
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options.table_factory.reset(NewBlockBasedTableFactory(table_options));
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DestroyAndReopen(options);
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// Compact against empty DB
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ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
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uint64_t int_prop;
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std::string str_prop;
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// Initial base level is the last level
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(4U, int_prop);
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// Put about 7K to L0
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for (int i = 0; i < 140; i++) {
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ASSERT_OK(
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Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))), rnd.RandomString(80)));
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}
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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if (NumTableFilesAtLevel(0) == 0) {
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// Make sure level 0 is not empty
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ASSERT_OK(
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Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))), rnd.RandomString(80)));
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ASSERT_OK(Flush());
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}
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(3U, int_prop);
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ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level1", &str_prop));
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ASSERT_EQ("0", str_prop);
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ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level2", &str_prop));
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ASSERT_EQ("0", str_prop);
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
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std::set<int> output_levels;
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
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"CompactionPicker::CompactRange:Return", [&](void* arg) {
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Compaction* compaction = reinterpret_cast<Compaction*>(arg);
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output_levels.insert(compaction->output_level());
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});
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
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ASSERT_EQ(output_levels.size(), 2);
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ASSERT_TRUE(output_levels.find(3) != output_levels.end());
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ASSERT_TRUE(output_levels.find(4) != output_levels.end());
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ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level0", &str_prop));
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ASSERT_EQ("0", str_prop);
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ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level3", &str_prop));
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ASSERT_EQ("0", str_prop);
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// Base level is still level 3.
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ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
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ASSERT_EQ(3U, int_prop);
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}
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TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBaseInc) {
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Options options = CurrentOptions();
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options.create_if_missing = true;
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options.write_buffer_size = 2048;
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options.max_write_buffer_number = 2;
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options.level0_file_num_compaction_trigger = 2;
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options.level0_slowdown_writes_trigger = 2;
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options.level0_stop_writes_trigger = 2;
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options.target_file_size_base = 2048;
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options.level_compaction_dynamic_level_bytes = true;
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options.max_bytes_for_level_base = 10240;
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options.max_bytes_for_level_multiplier = 4;
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options.max_background_compactions = 2;
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options.num_levels = 5;
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options.max_compaction_bytes = 100000000;
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DestroyAndReopen(options);
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int non_trivial = 0;
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::BackgroundCompaction:NonTrivial",
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[&](void* /*arg*/) { non_trivial++; });
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
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Random rnd(301);
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const int total_keys = 3000;
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const int random_part_size = 100;
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for (int i = 0; i < total_keys; i++) {
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std::string value = rnd.RandomString(random_part_size);
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PutFixed32(&value, static_cast<uint32_t>(i));
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ASSERT_OK(Put(Key(i), value));
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}
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ASSERT_EQ(non_trivial, 0);
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for (int i = 0; i < total_keys; i++) {
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std::string value = Get(Key(i));
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ASSERT_EQ(DecodeFixed32(value.c_str() + random_part_size),
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static_cast<uint32_t>(i));
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}
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env_->SetBackgroundThreads(1, Env::LOW);
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env_->SetBackgroundThreads(1, Env::HIGH);
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}
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TEST_F(DBTestDynamicLevel, DISABLED_MigrateToDynamicLevelMaxBytesBase) {
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Random rnd(301);
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const int kMaxKey = 2000;
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Options options;
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options.create_if_missing = true;
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options.write_buffer_size = 2048;
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options.max_write_buffer_number = 8;
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options.level0_file_num_compaction_trigger = 4;
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options.level0_slowdown_writes_trigger = 4;
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options.level0_stop_writes_trigger = 8;
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options.target_file_size_base = 2048;
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options.level_compaction_dynamic_level_bytes = false;
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options.max_bytes_for_level_base = 10240;
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options.max_bytes_for_level_multiplier = 4;
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options.num_levels = 8;
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DestroyAndReopen(options);
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auto verify_func = [&](int num_keys, bool if_sleep) {
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for (int i = 0; i < num_keys; i++) {
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ASSERT_NE("NOT_FOUND", Get(Key(kMaxKey + i)));
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if (i < num_keys / 10) {
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ASSERT_EQ("NOT_FOUND", Get(Key(i)));
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} else {
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ASSERT_NE("NOT_FOUND", Get(Key(i)));
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}
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if (if_sleep && i % 1000 == 0) {
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// Without it, valgrind may choose not to give another
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// thread a chance to run before finishing the function,
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// causing the test to be extremely slow.
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env_->SleepForMicroseconds(1);
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}
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}
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};
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int total_keys = 1000;
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for (int i = 0; i < total_keys; i++) {
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ASSERT_OK(Put(Key(i), rnd.RandomString(102)));
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ASSERT_OK(Put(Key(kMaxKey + i), rnd.RandomString(102)));
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ASSERT_OK(Delete(Key(i / 10)));
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}
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verify_func(total_keys, false);
|
|
ASSERT_OK(dbfull()->TEST_WaitForCompact());
|
|
|
|
options.level_compaction_dynamic_level_bytes = true;
|
|
options.disable_auto_compactions = true;
|
|
Reopen(options);
|
|
verify_func(total_keys, false);
|
|
|
|
std::atomic_bool compaction_finished;
|
|
compaction_finished = false;
|
|
// Issue manual compaction in one thread and still verify DB state
|
|
// in main thread.
|
|
ROCKSDB_NAMESPACE::port::Thread t([&]() {
|
|
CompactRangeOptions compact_options;
|
|
compact_options.change_level = true;
|
|
compact_options.target_level = options.num_levels - 1;
|
|
ASSERT_OK(dbfull()->CompactRange(compact_options, nullptr, nullptr));
|
|
compaction_finished.store(true);
|
|
});
|
|
do {
|
|
verify_func(total_keys, true);
|
|
} while (!compaction_finished.load());
|
|
t.join();
|
|
|
|
ASSERT_OK(dbfull()->SetOptions({
|
|
{"disable_auto_compactions", "false"},
|
|
}));
|
|
|
|
int total_keys2 = 2000;
|
|
for (int i = total_keys; i < total_keys2; i++) {
|
|
ASSERT_OK(Put(Key(i), rnd.RandomString(102)));
|
|
ASSERT_OK(Put(Key(kMaxKey + i), rnd.RandomString(102)));
|
|
ASSERT_OK(Delete(Key(i / 10)));
|
|
}
|
|
|
|
verify_func(total_keys2, false);
|
|
ASSERT_OK(dbfull()->TEST_WaitForCompact());
|
|
verify_func(total_keys2, false);
|
|
|
|
// Base level is not level 1
|
|
ASSERT_EQ(NumTableFilesAtLevel(1), 0);
|
|
ASSERT_EQ(NumTableFilesAtLevel(2), 0);
|
|
}
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
|
|
int main(int argc, char** argv) {
|
|
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|